Scoring tool



May 15, 1956 o. D. JENSEN ET AL 2,745,179

SCORING TOOL Filed July 15 1953 vsF'i'mZg [l4 3' OD. Jensen ATTORNEYSCORING TOOL Ole D. Jensen and Victor S. Fleming, Omaha, Nebn; saidFleming assignor to said Jensen Application July 13, 1953, Serial No.367,654

Claims. (Cl. 30-304) This invention relates to tools particularlyadapted for removing wall-paper from walls and of the type adapted to beused in the palm of a hand, and in particular a tool using used safetyrazor blades for forming serrations in wall-paper to facilitatepenetration of moisture, such as steam, to the adhesive between thewall-paper and surface of a wall, or wall-board, upon which thewall-paper is mounted.

The purpose of this invention is to expedite the removal of wall-paperfrom a wall where the wall-paper is being removed by being saturatedwith moisture to loosen the glue or other adhesive by which thewallpaper is secured to the wall.

Removing wall-paper has always been a difficult problem as the glue orother adhesive securing the wall-paper to a wall must be dissolved andas paper, particularly when glazed with glue, turns water and steam itis difficult to penetrate the surface and saturate the papersufiiciently to loosen the adhesive. Furthermore, many types ofwall-paper are chemically treated and in some rooms the wall-paper iscoated with grease and the like, which makes it very difficult to reachthe adhesive under the wall-paper.

With this thought in mind this invention contemplates a scraping orscratching tool in which a plurality of blades having sharp cuttingedges and particularly corners are removably mountedin an end of ahandle whereby with the handle gripped in a hand the blades extend forengagement with wall-paper on a wall upon which the tool is used whereinthe blades may cut through the outer surface and into the body of thewall-paper.

The object of this invention is, therefore, to provide means for forminga tool thatis adapted to cut into wallpaper to facilitate saturating thepaper with moisture.

Another object of the invention is to provide a tool for cuttingserrations into wall-paper in which used safety razor blades are used asthe cutting elements.

Another important object of the invention is to provide a hand actuatedtool for opening up wall-paper tofacilitate removing the paper withwhich the wall-paper may be cut in crisscross lines or serrations.

In instances where wall-paper has been placed over wall-paper on a wall,and in some instances several layers, one over another, are used onwalls, it is difficult, if not impossible for steam and the like topenetrate to the first coat of adhesive between the layer of wall-papernext to the wall and the surface of the wall. For this reason it isanother object of this invention to provide a tool for serratingwall-paper in which the cutting elements are adapted to cut throughseveral layers of Wall-paper in order to expose the adhesive between thelayer of paper against the wall surface and the surface of the wall tosteam and the like.

A further object of the invention is to provide a tool for serratingwall-paper on a wall in which the cutting elements, being used safetyrazor blades, may be removed and replaced, substantially without cost,when the blades become dull or broken.

" nited States Patent 0 ice A still further object of the invention isto provide a wallpaper cutting tool which facilitates saturating thepaper with steam and the like, in which the tool is of a simple andeconomical construction.

With these and other objects and advantages in view the inventionembodies a blade mounting cylinder having diagonally disposed bladereceiving slots therein with blades having cutting edges removablymounted in said slots, a handle formed with two substantiallycomplementary sections having cylinder gripping elements in one of theends thereof, and bolts extended through the sections of the handle forclamping the cylinder in the handle and the blades in the cylinder;

Other and further objects and advantages of the invention will becomereadily apparent from the following detailed description. 2

The views used to illustrate the new hand tool are as follows:

Figure l is a plan view of the improved scoring tool with parts of theupper section of the handle broken away to illustrate the clamping partsthereof.

Figure 2 is a side elevational view of the scoring tool showing themeans for clamping the blade holding element in the handle, and withpart of the upper section of the handle broken away and shown insection.

Figure 3 is an end elevational view of the improved wall-paper scoringtool, looking toward the end in which the cutting blades are positioned.I While one embodiment of the invention is illustrated in the abovereferred to drawings, it is to be understood that they are merely forthe purpose of illustration and that various changes in construction maybe resorted to in the course of manufacture in order that the inventionmay be utilized to the best advantage according to the circumstanceswhich may arise, without in any way departing from the spirit andintention of the device, which is to be limited only in accordance withthe appended claims. And while there is stated the primary field ofutility of the invention it remains obvious that it may be employed inany other capacity wherein it may be found applicable.

In the accompanying drawings, and in the following specification, thesame reference characters are used to designate the same parts andelements throughout and in which the numeral 8, refers to the inventionin its entirety, theinvention including a handle having a lower sectionit an upper section 12, and bolts 14 and 16 which clamp the sections ofthe handle around a cylinder or tube 18 of resilient material in whichblades 20 are secured in slots 22. I

The sections of the handle are substantially triangular shaped in planbeing formed with wide ends 24 and 26 and arcuate ends 28 and 30, theends 28 and 30 forming substantially a semi-circle. The section 10 isprovided with an arcuate flange 32 that extends along the sides andaround the end 28, and the section 12 is provided with a similar flange,as indicated by the numeral 34. As illustrated in Figure 2, the flange34 of the upper section 12 over-laps the flange 32 of the lower section10 at the extended end of the handle.

Also, as illustrated in Figure 2, the wide end 24 of the section it isbent under from the point 36, providing an arcuate cylinder grippingflange 33, and the wide end 26 of the upper section is provided with asimilar arcuate flange 4t), being bent under at the point 42.

The bolts 14 and 16 extend through aligned openings .in the upper andlower sections of the handle and the 3. able material and, as shown inFigure 3, the blade holding slots 22 are diagonally positioned wherebysharp cutting edges 48 of the blades extend downwardly. It will beunderstood that as many cutting blades may be used as may be desired,and the length of the cylinder may be regulated to correspond with thenumber of blades.

The improved scoring tool of this invention provides a device that isparticularly adapted for cutting serrations in. wall-paper, and althoughthe most eflicient motion is suggested. as being crisscross it will beunderstood that the serrations may be cut in any suitable pattern. Theshaip edges of safety razor blades cut through the Wallpaper, eventhough several thicknesses of paper are on the wall, and. with thewall-paper cut through in this manner water, steam, and the like maypenetrate through the body of the wall-paper, saturating the same and,thereby, reaching. the glue or other adhesive between the paper andsurface of a wall.

From the foregoing specification it will become apparent that theinvention disclosed will adequately accomplish the functions for whichit has been designed and in an economical manner and that itssimplicity, accuracy and ease of operation are such as to provide arelatively inexpensive device considering what it will accomplish andthat it will find an important place in the art to which it appertainswhen once placed on the market.

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafter considering the description. in connection with the drawings.Therefore, a more lengthy description is regarded as unnecessary.

Changes in shape, size, and arrangement of detailsand parts such as comewithin the purview of the invention claimed may be resorted to in actualpractice, if desired.

Having now described the invention that which is claimed to be new anddesired to be procured by Letters Patent, is:

1. A scoring tool comprising a handle having a lower section and acomplementary upper section, said sections having opposed coactingarcuate flanges extended inwardly from corresponding ends thereof at oneend of the handle, a tube of resilient material having spaced diagonallypositioned cutting blade holding slots extended therethrough, safetyrazor blades retained in said slots by resiliency inherent in thematerial of the tube, said tube being nested in the opposed flanges ofthe sections of the handle, and bolts having nuts thereon extendedthrough the sections of the handle for clamping the said sectionsagainst the tube.

2. In a wall-paper cutting tool, the combination which comprises a pairof substantially complementary handle sections having opposed arcuategripping elements on their inner surfaces and positioned at one end ofthe tool, a tube of resilient material nested in said arcuate grippingelements said tube having spaced diagonally positioned slots extendedtherethrough, blades having sharp cutting edges positioned in saidslots, the resiliency inherent in the tube providing means for holdingthe cutting blades in said tube, and means for clamping the tube betweenthe sections and in said arcuate elements.

d 3. In a wall-paper scoring tool, the combination which comprises ahandle having a lower section, one end of which is bent inwardlyproviding an arcuate flange on the inner surface of said one end of thesection, and a complementary upper section also having an inwardly bentarcuate flange on the inner surface of the one end corresponding to thesaid one end of the lower section,

a tube of resilient material having diagonally disposed slots extendedtherethrough positioned between said arcuate flanges of the lower andupper sections, blades having sharp cutting edges positioned in saidslots, and means for clamping said tube in position between the saidarcuate flanges of the sections.

4. In a scoring tool, the combination which comprises a handle having alower section, one end of which is bent inwardly providing an arcuategripping flange on the'inner surface of one end thereof, a complementaryupper section also having one end bent inwardly providing an arcuategripping flange on the inner surface and at one end thereof, saidsections having arcuate overlapping flanges on edges of the ends thereofopposite to the ends on which the arcuate gripping flanges arepositioned, and belts with nuts thereon extended through said sectionsfor clamping the sections together, a rubber tube having diagonallydisposed slots extended therethrough secured in said arcuate flanges ofthe sections, and safety razor blades extended through the slots of saidrubber tube.

5. In a wall-paper scoring tool, the combination which comprises a pairof complementary hollow handle sections substantially triangular-shapedin plan and having arcuate over-lapping edges at the small ends thereof,said sections being turned under at the wide ends providing arcuateopposed gripping flanges between the said wide ends, a tube of elasticmaterial having diagonally disposed slots therein extended through saidwide ends of the handle sections and nested in said arcuate grippingflanges, safety razor blades having beveled corners on extended endsmounted in said diagonally disposed slots and retained in the tube byresiliency inherent in the material thereof, and bolts extended throughthe handle sections for retaining the arcuate flanges of the sections ingripping relation with said tube.

References Cited in the file of this patent UNITED STATES PATENTS559,838 Black May 12, 1896 797,857 Kulenkamptf Aug. 22, 1905 1,176,257Velcansky Mar. 21, 1916 1,620,138 Sokolowski Mar. 8, 1927 1,838,752Elfstedt Dec. 29, 1931 1,903,877 Potter Apr. 18, 1933 1,943,252Abrahamsen Ian. 9, 1934 2,084,570 Beck June 22, 1937 2,435,349 Hall Feb.3, 1948 2,471,763 Merrick May 31, 1949 2,590,966 Heller Apr. 1, 1952FOREIGN PATENTS 217,499 Great Britain June 19, 1924

